FX:SPX500   美国标准普尔500指数
This Chart shows about a month view on a 4hr candle time frame.
When it broke out all that resistance should have become support but you see it fell right back below and then came back up to re-test that resistance zone and got rejected down. It then broke through the Support zone and is now testing what should be resistance.

"Support and resistance Theory"
- Once resistance is broken it tends to act as support.
- Once support is broken it tends to act as resistance.
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